Transmission



Feb. 4, 1930. I H IM 1,745,760

TRANSMISSION Filed May 19, 1927 4 Sheets-Sheet l 1 N V EN TOR. LE GEO/8G5 HE/N /3 H A TTORNEYJ:

Feb. 4, 1930. G. HEINISH 1,745,750

TRANSMISSION Filed May 19, 1927 4 Sheets-Sheet 2 JNVENTOR. 50l30 HEW/sh ATTORNEY):

Feb. 4, 1930. sH 1,745,760

TRANSMISSION Filed May 19, 1927 4 Sheets-Sheet 5 INVENTOR 46 F j 650m: f/E/N/JH 6Q Y /SM A TTORNEKX V PatentedFebL '4, 1930 f GEORGE nnm'ismjfornxnon, OHIO,.'ASSIG1\TOR 'TOlTI-I EQSTAR DEILLING MACHINE .PTATENT OFFICE corrr NY, or AKRONLO'HIO, n'conronn'rioiv or OHIO TRANSMISSION 1 Application filed May,19, 1927.' Serial No. 192,613,

- invention'relates to transmissions,

particularly of the'planetary type.

: The general purpose of the invention is' to improve'upon transmissions of this type by 1 5 the provision of a more eificient lubricating system, 7

Heretotore planetary transmissions, such asreverse gears, have been objectionable in :that'they throw off a great deal of oilor other "i0 lubricantgfrom the bearings and :alsofrom the joint between the casingpartsyand it 'is the object of this invention to provide an improved lubricating system adapted to ,prevent throwing of oil,

The foregoing "and other objects are *obtamed by; thedevice illustratedintheaccompanying 'drawings'and described-below it ,.being understood thatkthe invention is not Q limited to thespecifi'c iorm thereof shown "Of the accompanying drawings, f Eigure 1 is a sideelevation of'a transmislgsion embodying'theinvention; Figure 2-is ,a' sectionon line o'fjFi-gure l;

' thereto providing asupport for a powerfunit including a transmission 12 of the planetary reversejgea'rtype. l I I The transmission includes a driving member '13 which may be connected tothefly wheel ll oi a motor (not shown), said member being mounted on a pilot shai't 15 driven 'bythe motor an'dbeing journaledyon a driven I shaft 16 "drivergear 18 thereon which is arranged to drive through reversing planet gears including those indicated at 19 and 20 in the usua'lway to a driven gear 21 mounted on shaft 16. 'The planet gears ofthe transmission'are journaled' uponstuds, such as indicated at 22. and 23, mounted in casing 12,

and 1 1," j' 11 transverse channels connected byjbearing 17 'jM'ember *13has a a casing "12 being ,journaled upon member 13 by 'bearing24and onthe driven shaft .16 by a bearing25. A clutch '26 is provided toicon- -nect the transmission drum or :casing 12 to :shaftlfi and brake bands 27 and 28 area-"J ,rangedto be engaged with casing or drum .12

:tosecure an increased speed in reverse tli rough' the planetary gearing contained W1tll1l1 the casing.

In Figures 5 and 6, which are radial'sec-lc tions through one section 12 of casing '12, between the planetstuds, there are shown ports for indicating the level of and admission ofoil or other lubricant to "or drainage of'the same from casing'12. Bearing'24: has

a batlle 24; arranged about it and about which 'oil can flow into and through the "bearing. "To prevent throwing of the oil from the bearing, :an annular pocket is provided at '29'abouttl1eouter side thereof-to receive the 'zo oil and radial ducts 30 are provided in casing 12between studs'23 through which the oil from pocket 29 is iorcedback into the casing by centrifugal action.

The bearing 25-is arranged tobe similarly '75 lubricated, the construction of casing 12 "about this bearing providing a' baflle 25 so that a separate oil baflle need .not be employed, the pocket 31 about the outer side of the bearing receiving the oil passing-so through the bearing and radial ducts inthe casing 12 delivering the oil from pocket 31 back into the casing.

Throwing of oil from between the casing parts 12 and 12 is prevented by forming circumferential grooves serrations or the like, as indicated at 33, on at least one of these parts or sections and bolting the parts together with a gasket 84 of compressible material disposed therebetween.

The operation of the lubricating system is as follows:

The oil in the casing is carried up by rotation of the casing and rotation of the gearing and is supplied to the inner ends of main bearings24 and 25, flow of oil therein, however, being restricted by baflles 24 and 25 so that the amount of oil passing into the bearings is kept at a minimum whereby it is controllable against seepage out 'of the casing 12. The lower band 28 is connected at one end by an adjustable U-bolt 44 to brackets 43 and at the other end to a bell crank '45 pivoted on brackets 40. Bell cranks 42 and 45 are arranged to be simultaneously actuated to apply or release the bands by means of a reciprocable rod 46 slidably mounted on channels 10 and connected by a link 47 to an operating lever 48.. The rod 46jis also employed for shifting the clutch, a clutch vshifting arm 49 for operating the shifting yoke 50 being yieldingly' connected by a spring 51 to a link 52 connected to rod 46 at 53. A stop device 54 is arranged on the clutch shifting device to limit its movement to released position and to cause the spring 51 to'compress upon application of the brake bands. Toggle actuated pressure applying earns 55, 55 are employed in the clutch so that it will remain engaged when shifted into engagement by lever 48, the connection being such that a further movement of lever 48 after disengagement of the clutch will apply the brake bands 27 and 28 and, vice versa, a further movement of lever '48 after disen gaging the bands 27 and 28 will engage the clutch.

It will appear from the foregoing that by the invention, oiling systems employed with planetary "transmissions or reversing gears have been greatly improved. It will also be vapparent that modifications of the invention may be resorted to ;without departing from the spirit thereof or the scope of the appended claims. I

- What is claimed is n r I 1. A transmission of the planetary type,

including a rotatable casing and planetary gearing contained therein, bearings for the casing constructed to'permit a lubricant in the casing to pass outwardly therethrough, and baffles about the inner sides of the bearing to restrict suchpassage of lubricant, said casing having pockets therein about the outer sides of the bearings to receive the lubricant therefrom and also having one or more ducts therein extending from said pockets radially V outwardly to deliver lubricant into the cas- I ing, whereby the lubricant passing through the bearings will be returned to the casing. 2. A transmission of the planetary type,

including a rotatable casing and The oil passes through thebearings including a rotatable ca planetarygear1ng conta1ned therein, and bearings for the casing constructed to permit a lubricant I in the casing. to pass outwardly therethrough, said casing having pockets therein about the outer. sides of'the bearings to receive the lubricant therefrom and also having one or more ducts therein extending from said pockets radially outwardlyto deliver lubricant into the casing, whereby the lubricant passing through the bearings willberetur'ned to the casing 3. A transmisslon of "the planetary type, including a'rotatable casing andplanetary gearing contained therein, bearings for the casing constructed to permit a lubricant in the casing to pass outwardly therethrough,

"and battles about the inner sides of thebe'aring to restrict such passage of lubricant, said casing having one or more ducts thereinextending from the outer side of the bearings radially outwardly to deliver the lubricant back into the casing. I 4. A transmission of the planetary type, includin a rotatable casing and planetary gearing contained therein,'and bearings for the casing constructed to permit a lubricant in the casing to pass outwardly therethrough, said casing having 'oneor more ducts therein extending from the outer side of the bearings radially outwardly to deliver the lubricant back into the casing. r

5. A transmission of'the planetary type, i

including a rotary casing, bearings for the casing, said bearings being constructed so that a lubricant in'thecasing may pass'outwardly therethrough, and means for returning the oil passing through the bearings back into the casing. I

.6. A transmission of the planetary type,

sing and planetary gearing contained therein, and bearings for the casing constructed topermit a lubricant in the casing to pass outwardly therethrough,

said casing having pockets at the'outer ends of the bearings vfor receiving oil therefrom and having'one'or more ducts therein eXtend ing from the pockets radially outwardly to deliver the lubricant back'into the casing.

7. A transmission of the planetary type, including a rotary casing, a bearing for the casing adapted to bellubricated byfoil contained the casing, and means for'preventing throwing of oil from the bearing comprising a baflie for restricting flow of oil into the bearing, a pocket for receiving oil from the outer end of the bearing, said casing having one or more radial passages for delivering oil from the pocket back into the casing by. centrifugal force. K

8. A transmission of the planetary type, including a rotary casing, a bearing for the casing adapted to be lubricated by oil contained in the casing, and means for prevent,- ing throwing of oil from the bearing comprising a baiile for restricting flow of oil into the bearing.

9. A transmission of the planetary type, including a rotary casing, a bearing for the casing adapted to be lubricated by oil contained in the casing and means for preventing throwing of oil from the bearing comprising a pocket for receiving oil from the outer endof the bearing, said casing having one or I more radial passages for delivering oil from the pocket back into the casing by centrifugal force.

, 10. A transmission of the planetary type, including a rotary casing, a bearing for the casing adapted tobe lubricated by oil contained in the casing, and means for preventing throwing of oil from the bearing comprising means for returningoil from the a, outer end of the hearing back into the casing.

11. A transmission of the planetary type, including a rotary casing, a bearingfor the casing adapted to be lubricated by oil contained in the casing, and means for prec Venting throwing of oil from the bearing com: prising a baflie for restricting flow of oil into thebearing, and-means for returning oil from the outer end of the bearing back into the casing.

GEORGE HEINISH. 

